Tremolo speed - varying vernier

Dacious

Doctor of Teleocity
Joined
Mar 16, 2003
Posts
10,239
Location
Godzone
:? Hi guys. I am working on a friends little Rose-Morris Goldentone, a push-pull amp using two 6GW8s. Got rid of all the hisses, crackles and noises, owner is very happy. But I changed the .01 and .02 caps in the vibrato circuit which killed the noises, but the vibrato now runs much faster. Is there a way to slow it down?

I don't have the schematic for it, but checking on the FFAG, it appears to be wired similar to small fenders, with a triode (one off the 6GW8s) driving a network of .01 and .02 caps and resistors coming off the plate and grid, using the intensity control to mix the vibrato signal with the dry.

I remember someone posting about changing some values on an amp with a similar problem to back the range of speed off a bit.

Any clues?
 

Mitch Roberts

Tele-Holic
Joined
Mar 17, 2003
Posts
560
Location
CT
Caps

Don't quote me on this, but I THINK you need to change the .01's in
the trem circuit to .02's. I'd try one at a time an see what happens.
I did this in my Super Reverb and got really cool slow tremelo.

Mitch
 

Dacious

Doctor of Teleocity
Joined
Mar 16, 2003
Posts
10,239
Location
Godzone
Thanks Mitch

Tried swapping one by one. Changing all three gave the best combination of range and speed - he's really happy with it now.
 

Mitch Roberts

Tele-Holic
Joined
Mar 17, 2003
Posts
560
Location
CT
Trem

Glad it woked out. I think a really slow tremelo sounds
very cool in some applications.

Mitch
 




Top